Calibrate toward different color spaces?

Home Forums Help and Support Calibrate toward different color spaces?

Viewing 4 posts - 1 through 4 (of 4 total)
  • Author
    Posts
  • #22838

    Ender
    Participant
    • Offline

    I just recently got a HP spectre x360 with OLED screen option and would like to calibrate it with my i1display pro. The laptop comes with an app to switch different colorspaces which seems to be just load different ICC profiles (see attached).

    Is it advisable to calibrate my screen towards different color spaces and replace the factory profiles? AFAIK windows w/o HDR mode on is sRGB only and having profiles for WCG feels confusing.

    • This topic was modified 1 week, 4 days ago by Ender.
    Attachments:
    You must be logged in to view attached files.

    i1Display Pro on Amazon  
    Disclosure: As an Amazon Associate I earn from qualifying purchases.

    #22865

    Vincent
    Participant
    • Offline

    I just recently got a HP spectre x360 with OLED screen option and would like to calibrate it with my i1display pro. The laptop comes with an app to switch different colorspaces which seems to be just load different ICC profiles (see attached).

    Is it advisable to calibrate my screen towards different color spaces and replace the factory profiles? AFAIK windows w/o HDR mode on is sRGB only and having profiles for WCG feels confusing.

    It needs to do more that that, like some GPU powered gamut emulation based on HP app colorspace choice.

    Validate each mode with DisplayCAL and check how they behave. Display autodimming may mess with verification/profiling.

    If there is something wrong DisplayCAL may help you to correct white and grey (grey color & gamma) with a GPU calibration on top each mode. Gamut inaccuracies like sRGB being a liitle bigger that it should, or sorter cannot be corrected this way, it will need some vendor software.

    Make sure to use RGB OLED correction for i1DisplayPro when measuring.

    #23032

    Ender
    Participant
    • Offline

    I just recently got a HP spectre x360 with OLED screen option and would like to calibrate it with my i1display pro. The laptop comes with an app to switch different colorspaces which seems to be just load different ICC profiles (see attached).

    Is it advisable to calibrate my screen towards different color spaces and replace the factory profiles? AFAIK windows w/o HDR mode on is sRGB only and having profiles for WCG feels confusing.

    It needs to do more that that, like some GPU powered gamut emulation based on HP app colorspace choice.

    Validate each mode with DisplayCAL and check how they behave. Display autodimming may mess with verification/profiling.

    If there is something wrong DisplayCAL may help you to correct white and grey (grey color & gamma) with a GPU calibration on top each mode. Gamut inaccuracies like sRGB being a liitle bigger that it should, or sorter cannot be corrected this way, it will need some vendor software.

    Make sure to use RGB OLED correction for i1DisplayPro when measuring.

    How do I validate the results? I usually just do the calibration and using all default settings and never looked into details. What exact parameter should I look into?

    For example this is the profile info from measuring HP display control in “Default” mode:

    Size 499500 Bytes (487.79 KiB)
    Preferred CMM 0x6172676C ‘argl’ ArgyllCMS
    ICC version 2.2
    Profile class Display device profile
    Color model RGB
    Profile connection space (PCS) XYZ
    Created 2020-02-11 22:17:50
    Platform Microsoft
    Is embedded No
    Can be used independently Yes
    Device
    Manufacturer 0x0000834C
    Model 0x00004142
    Media attributes Reflective, Glossy, Positive, Color
    Default rendering intent Perceptual
    PCS illuminant XYZ 96.42 100.00 82.49 (xy 0.3457 0.3585, CCT 5000K)
    Creator 0x4443414C ‘DCAL’ DisplayCAL
    Checksum 0xC835300D23480D3D01A6E3578A8AB6D5
    Checksum OK Yes
    Description (ASCII) 16706 #1 2020-02-11 21-57 2.2 F-S XYZLUT+MTX
    Copyright No copyright. Created with DisplayCAL 3.8.9.3 and
    ArgyllCMS 2.1.2
    Device model name (ASCII) 16706
    Luminance 371.81 cd/m²
    Media white point
    Is illuminant Yes
    Illuminant-relative XYZ 93.33 100.00 108.02 (xy 0.3097 0.3318)
    Illuminant-relative CCT 6643K
    ΔE 2000 to daylight locus 4.26
    ΔE 2000 to blackbody locus 8.06
    Media black point
    Illuminant-relative XYZ 0.0000 0.0000 0.0000
    Absolute to media relative transform Bradford (ICC recommendation)
    Matrix 0.8951 0.2664 -0.1614
    -0.7502 1.7135 0.0367
    0.0389 -0.0685 1.0296
    Video card gamma table
    Bitdepth 16
    Channels 3
    Number of entries per channel 256
    Channel 1 gamma at 50% input 1.24
    Channel 1 minimum 0.0000%
    Channel 1 maximum 100.00%
    Channel 1 unique values 256 @ 8 Bit
    Channel 1 is linear No
    Channel 2 gamma at 50% input 1.24
    Channel 2 minimum 0.0000%
    Channel 2 maximum 100.00%
    Channel 2 unique values 256 @ 8 Bit
    Channel 2 is linear No
    Channel 3 gamma at 50% input 1.25
    Channel 3 minimum 0.0000%
    Channel 3 maximum 100.00%
    Channel 3 unique values 256 @ 8 Bit
    Channel 3 is linear No
    Device to PCS: Intent 0
    Matrix 1.0000 0.0000 0.0000
    0.0000 1.0000 0.0000
    0.0000 0.0000 1.0000
    Input Table
    Channels 3
    Number of entries per channel 2049
    Color Look Up Table
    Grid Steps 33
    Entries 35937
    Output Table
    Channels 3
    Number of entries per channel 2
    Red matrix column
    Illuminant-relative XYZ 52.75 24.64 0.05 (xy 0.6812 0.3182)
    PCS-relative XYZ 56.68 26.32 -0.09 (xy 0.6837 0.3174)
    Green matrix column
    Illuminant-relative XYZ 22.83 69.62 4.69 (xy 0.2350 0.7167)
    PCS-relative XYZ 26.06 69.19 4.32 (xy 0.2617 0.6949)
    Blue matrix column
    Illuminant-relative XYZ 17.75 5.74 103.28 (xy 0.1400 0.0453)
    PCS-relative XYZ 13.68 4.49 78.26 (xy 0.1418 0.0466)
    Red tone response curve
    Number of entries 256
    Transfer function ≈ Gamma 2.83 100% (Δ 3.82%)
    Minimum Y 0.0000
    Maximum Y 100.00
    Green tone response curve
    Number of entries 256
    Transfer function ≈ Gamma 2.83 100% (Δ 3.82%)
    Minimum Y 0.0000
    Maximum Y 100.00
    Blue tone response curve
    Number of entries 256
    Transfer function ≈ Gamma 2.83 100% (Δ 3.82%)
    Minimum Y 0.0000
    Maximum Y 100.00
    Device to PCS: Intent 1
    Matrix 1.0000 0.0000 0.0000
    0.0000 1.0000 0.0000
    0.0000 0.0000 1.0000
    Input Table
    Channels 3
    Number of entries per channel 2049
    Color Look Up Table
    Grid Steps 33
    Entries 35937
    Output Table
    Channels 3
    Number of entries per channel 2
    PCS to device: Intent 1
    Matrix 3.1394 -0.7487 -0.3373
    -1.3070 3.1691 0.1104
    0.0690 -0.0581 2.4142
    Input Table
    Channels 3
    Number of entries per channel 4096
    Color Look Up Table
    Grid Steps 33
    Entries 35937
    Output Table
    Channels 3
    Number of entries per channel 256
    PCS to device: Intent 0
    Matrix 3.1394 -0.7487 -0.3373
    -1.3070 3.1691 0.1104
    0.0690 -0.0581 2.4142
    Input Table
    Channels 3
    Number of entries per channel 4096
    Color Look Up Table
    Grid Steps 33
    Entries 35937
    Output Table
    Channels 3
    Number of entries per channel 256
    Characterization target [24683 Bytes]
    Characterization device values [24683 Bytes]
    Characterization measurement values [24683 Bytes]
    Chromaticity (illuminant-relative)
    Channel 1 (R) xy 0.6812 0.3182
    Channel 2 (G) xy 0.2350 0.7167
    Channel 3 (B) xy 0.1400 0.0453
    Make and model
    Manufacturer 0x4C83
    Model 0x4142
    Metadata
    prefix EDID_
    CMF_
    DATA_
    MEASUREMENT_
    OPENICC_
    ACCURACY_
    GAMUT_
    EDID_mnft SDC
    EDID_mnft_id 19587
    EDID_model_id 16706
    EDID_date 2019-T19
    EDID_red_x 0.6796875
    EDID_red_y 0.3193359375
    EDID_green_x 0.232421875
    EDID_green_y 0.71875
    EDID_blue_x 0.1396484375
    EDID_blue_y 0.0439453125
    EDID_white_x 0.3125
    EDID_white_y 0.3291015625
    EDID_gamma 2.2
    EDID_md5 f1075cfad448ffc9df400579752af06b
    CMF_binary DisplayCAL
    CMF_version 3.8.9.3
    CMF_product DisplayCAL
    License Public Domain
    Quality high
    OPENICC_automatic_generated 0
    DATA_source calib
    MEASUREMENT_device i1 displaypro, colormunki display
    ACCURACY_dE76_avg 0.124121
    ACCURACY_dE76_max 2.335873
    ACCURACY_dE76_rms 0.286254
    GAMUT_volume 1.71706184818
    GAMUT_coverage(dci-p3) 0.9997
    GAMUT_coverage(srgb) 1.0001
    GAMUT_coverage(adobe-rgb) 0.955

    • This reply was modified 3 days, 4 hours ago by Ender.

    i1Display Studio on Amazon  
    Disclosure: As an Amazon Associate I earn from qualifying purchases.

    #23037

    Vincent
    Participant
    • Offline

    DispayCAL, verification tab (verify icon) on the right.

    For color managed apps just check if display & profile match and if  whitepopint and grey range are OK to your requirements.

    For validating HW calibration of stuff like that laptop gamut emulation to some colorspace just do the same and set simulation colorspace to whatever you tried to emulate + use simulation profile as display profile.

    For validating HW calibration or stuff like that laptop gamut emulation to some colorspace PLUS some further whitepoint or gamma or grey correction done with DisplayCAL you may want to just validate if Displaycal profile matches display and/or use HCFR or tools like that.

Viewing 4 posts - 1 through 4 (of 4 total)

You must be logged in to reply to this topic.

Log in or Register

Display Calibration and Characterization powered by ArgyllCMS